std::string_view 的使用

Core/Serial/Serial_linux.cpp

@@ -1,4 +1,5 @@
 #include <thread>
+#include <string_view>
 #ifdef __linux__
 #include "Serial_p.h"
 #include <map>
@@ -216,7 +217,7 @@ std::optional<Baud_Rate_Type> value_to_baud(const long baud_rate) {
 
 
 
-std::string get_serial_info_str(std::string serial_name) {
+std::string get_serial_info_str(std::string_view serial_name) {
     Serial serial;
     serial.set_serial_name(std::move(serial_name));
     serial.open();
@@ -225,7 +226,7 @@ std::string get_serial_info_str(std::string serial_name) {
     return ret;
 }
 
-int open(const std::string& serial_name) {
+int open(std::string_view serial_name) {
     // 打开串口设备   O_RDWR | O_NOCTTY | O_CLOEXEC
     Serial_FD fd = ::open(serial_name.c_str(), O_RDWR | O_NOCTTY | O_CLOEXEC); // O_RDWR: 可读可写, O_NOCTTY: 不设置为控制终端, O_NDELAY: 非阻塞
     if (fd == -1) {